九年级Unit 8 It must belong to Carla. 单元复习课件（80张PPT）

Unit 8 It must belong to Carla. 九年级英语中考复习： 情态动词表推测 表示推测的情态动词有must(一定；肯定), can(可能), can't(不可能), could(可能), may(可能), might(可能)。 意思 推测程度 must 一定，肯定 100%的可能性 may might /could 有可能， 也许 20%--80%的可能性 can’t 不可能， 不会 可能性几乎为零 must+动词原形，表示很有把握的推测，意为“肯定；一定”。例如： 1.肯定推测. 一、对现在情况的推测。 The book _____ _____ Ming’s because it has her name on it. 这本书一定是明的，因为上面有她的名字。 be must must be+现在分词"表示 "一定正在做..."。 He must be studying in his room. 2. 可能性的推测。 (1) may+动词原形，表示对现在把握不大的推测， 意为“也许；可能”。例如： 这个故事也许是真的。 This story _____ ____true. may be (2) could, might +动词原形,常用在过去时态中；但在某些场合，为了使语气更委婉，常用could和might代替can和may。例如： 这辆自行车有可能是李雷的，但是我不敢肯定。 The bike _____ ____Li Lei’s, but I’m not sure. /could might be (3) may/might be doing... 表示"可能在做..." 3. 否定推测 1. 表示否定的推测时，can’t / couldn’t语气最强，指“不可能”，带有惊讶、怀疑的感彩。例如： The story sounds reasonable, but it ____ ____true. 2. 语气不很肯定时，常用may not或might not 表否定推测，意为“可能不；也许不”。例如： Simon _____ _____ be in the classroom. 这个故事听起来合情合理，但不可能是真的。 can’t be 西蒙可能不在教室里。 may not / might not Whose _____ it be? _____it be Tom’s? 4. 疑问句中的推测 疑问句中的推测，常用can或could, 意为“可能”。could为can的过去式，表示推测的语气较 can 弱。could 还可用于表示客气，委婉， 礼貌的请求语气。例如： (1). 那能是谁的呢? 是汤姆的吗? can Can -- Can the man there be our math teacher? -- He may be, but I am not sure. Could I call your first name? 我可以叫你的名字吗？ 二. 对过去情况的推测. 肯定推测： must + have + 过去分词，表示对过去情况很有把握的肯定的推测。 他们一定听到这个消息了。 早饭后他一定是在这儿。 They _____ _____ _____ the news. must have heard He _____ _____ _____here since breakfast. been must have What does he do? He could/might be a/an _____. doctor What is the panda doing? It might /could be_____. reading a book What is the bear doing? It might /could be _____. playing basketball 1. The textbook _____ be his. It has his name on it. 2. The beautiful trousers _____ be Jim’s. They are too long. 3. The football _____ be Wei Hua’s or Tian Hui’s. They both play football. 4. —Where is Xiao Ling? —She _____ be in her bedroom, but I am not sure. 5. After a long walk, the old man _____be tired now. I. 用must, may, might或can’t 填空。 must can’t might may must 感悟中考 1. --Jim is reading a book under that tree. --It _____be Jim. He has gone to Hainan. A. may B. mustn't C. can't 2.--Where are you going this month? --We _____go to Xiamen, but we are not sure. A. needn't B. must C. might D. mustn't C C 3. --Whose book is this? -- It _____our geography teacher's. You see, his name is on it. A. can't be B. can be C. mustn't be D. must be D 1. I didn’t hear the phone. I ___ asleep. A. must be B. must have been C. ... ...